# CSV Input Filtering - [Python Regular Expressions](Python-Regular-Expressions) Search function - [Definitions](#definitions) - [Quoting rules](#quoting-rules) - [Column row filtering](#column-row-filtering) - [Field names](#field-names) - [Inclusive filters](#inclusive-filters) - [Exclusive filters](#exclusive-filters) - [Matches](#matches) - [Column row limiting](#column-row-limiting) - [Saving filters in gam.cfg](#saving-filters-in-gamcfg) - [Validate filters](#validate-filters) There are two values in `gam.cfg` that can be used to filter the input from `gam csv` commands. * `csv_input_row_filter` - A list or JSON dictionary used to include specific rows based on column values * `csv_input_row_drop_filter` - A list or JSON dictionary used to exclude specific rows based on column values These filters can be used alone or in conjunction with the `matchfield|skipfield ` options. * https://github.com/GAM-team/GAM/wiki/Bulk-Processing#csv-files ## Definitions [Data Selectors](Collections-of-items) ``` ::= | | ``` ``` ::= -- | (+|-)(d|w|y) | never| today